Mangle.



PATENTED JULY 16, 1907.

E. G. SMITH.l

MANGLE. APB-LIoATIoN FILED Nov. 2e. wop.

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kIATEN'IBD JULY 16, 1907.

IE. G. SMITH.

MANGLE.

PPLIoATloN FILED nov. 26. 1906*.

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PTENTBD JULY 16, 1907.

E. G., SMITH. V 'MANGLB- APPLICATION FILED IGV. 26, 1906.

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WJTNESSES.-

ERNST G. SMITH, oF COLUMBIA, PENNSYLVANIA; i

MANGLE.

Specification of Letters Patent.

Patented July 1e, 1907.

Application filed November 26,1906. Serial No. 345,128..

To all whom Ait mayl concern: l

Be it knownl that I, ERNST G. SMITH, a citizen of the United States,residing at Columbia, in the county of Lancaster and State ofPennsylvania, have invented a new and useful Mangle, of whichthe'following is a speciication.

' This invention relates to mangles, and has for one of its objects toprovide means whereby the pressure rollers may be moved out 'of contactwith themain drum or cylinder when the machine is not in use in order toavoid injury to the yieldable layers of felt or other ma.- terial withwhich said rolls are usually covered.

' A further object of the invention is to provide a mechanism of simpleconstruction by which all of the pressure rollers may be simultaneouslymoved toward and from operative position.

A still further object of the invention is to provide a mangle in whichprovision is made for slackening the main apron, so as to avoidinjurious strain on the same when not in use, and to permit its movementout of engagement with the steam jacket.`

A still further object of the invention is to provide a mangle in whichthe pressure rolls and the main apron may be simultaneouslymoved toinoperative position when the machine is not in use.

Further objects of the invention are to improve and simplify theconstruction of the machine in general, and to render its operation moreeffective than machines of this general type as now constructed.

With these and other objects in view, as will more fully hereinafterappear, the invention consists in certain novel features of constructionandl arrangement of parts, hereinafter fully described, illustrated inthe accompanying drawings, and particularly pointed out in the appendedclaims, it being understood that various changes .in the form,proportions, size and Aminor dek tails of the structure may be madewithout departing from the spirit or sacrificing any of the advantagesof the invention.

l`n the accompanying drawingsz-Figure 1 is a side elevation of `a mangle'constructed in accordance with the invention. 2 is a -transversesectional view of a portion of the machine onthe line 2-2 of lFig. l,the view being on an enlarged scale. Fig. 3 is a view in the nature of adiagram illustrating the arrangement of the main drum or cylinder, thepressure rollers/and the main aprons. Fig. 4 isa detail viewillustrating a slight modification of the pressure roller raising means.Fig. 5 is a detail view showing the extension of the shaft of one of theidlers employed for keeping the apron taut.

Similar numerals of reference are employed to indicate correspondingparts throughout the several gures of the drawings.

The `working parts of the machine are supported on a suitable frame,including foppositely disposed cheek plates 10 which are provided withbearings for the support of the main drum shaft, and .the several .apronj guiding rollers. n n, A.

The main shaft 12 is hollowto permit the introduction of steam into thedr'urn'l, and this drum coper-v ates with a number of felt coveredpressure rollers 16 and two aprons 17 and 18 in pressing the clothes.The upper and innermost apron 17 is guided into contact with the lowerportion of the drum by means of a pair of rollers 22 and 23, and theapron after passing over the roller 22 is led over idlers 24-24, to theroller 23, suitable means being employed for adjusting one or more ofthe idlers for the purposeof keeping the apron taut. The idler 24 iscarried by a shaft, the ends of which extends out through slots 25formed in the cheek plates, and are arranged to form handles 26. thisidler is imposed on the apron and serves to hold the latter taut, theends of `the shaft beingV held from en-v gagement with the lower end ofthe slots. Should the apron become twisted or awry, the roller may belifted -by grasping the handles 26, and when the apron is thusslackened, it may be readily straightened. Provision roller when themachine is not in use, so that the apron 17 will not be held tightly in'engagement with the drum. The second apron 18 isgiided over a roller 27lis also made, as will hereinafter appear, for raising this f at thefront or feeding end of the machine,k and passes into engagement withthe apron 17 at the periphery of' the roller 22. The apron 18 thencepasses under a steam jacket 29 that preferably is arranged on a lineconcentric with the periphery of the drum 15, the end of the steamjacket being extended upward in the form of guiding ingers 30 in orderto carry the goods over the roller 31 and the apron to the deliveryside. The apron thence passes over a large roller 32 and is led backover idlers 34-34, some of which are adjustably mounted in order tokeepthe apron taut.

The roller 34 is provided with a shaft, the ends of 'which projectthrough slots 35 formed in the cheek plates andform handles 36 which maybe grasped for the purpose of raising the roller. The weight of thisroller is normally imposed on the belt, the handle mem- .bers being atall times maintained above the bottom of the slots, but if the apronbecomes twisted or awry.`

this roller may be readily raised and the belt slackencdv andstraightened. Provision is also made, as will hereinafter appear, forraising this roller and slackening the apron when the machine is not inuse, so that the apron may not be held tightly against the steam jacket.

At the feeding side of the machine the clothes are placed on a feedingapron 40, the inner end of which passes over a small roller 40 while theouter end of said apron passes over a roller 41 that is adjustablymounted in a pair of swinging brackets 42, there being one of suchbrackets at each. side of the machine. These brackets are held outwardby an adjustable compression spring 43 in order to keep the feed aprontaut,

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and at the delivery end of this apron is a roller by which the clothesare guided into contact with the main'drum.

` The clothes are fed on to the 'apron 40, and pass under the roller 44into engagement with the periphery of the main drum 15, the clothesthence passing under the successive pressure rollers 16, and downbetween the periphery of the drum and the inner belt 17. Aftertraversing thelower part of the drum, the clothes are carried by theVapron over the roller 22 and between the aprons 17 and 18, and arethence carried by the apron 18 to a position below the steam jacket 29where they frictionally engage with the outer surface of the steamjacket, and thence are carried up over the roller 31, and deflected bythe fingers 30 to the delivery point. j I V I I ln machines of thisgeneral type, much difficulty has been experienced in preserving therollers in good working order. The pressure rollers are covered withfelt or other yieldable material and if allowed to remain in contactwith the heated drum 15 while the machine is stopped, the felt coveringwill be seriously injured. The aprons are also injured `if allowedtofremain in contact with the heated drum and steam jacket while themachine is not running.

In carrying out'the present invention, the shafts of the pressurerollers are journaled in two sets of arcuate frames 50 and 5l. Theshafts are carried by boxes which are held down by suitable springs 52,the stress of which may be adjusted by hand screws 52. Each of theframes 50 is provided with a depending bar 53 I. thatis slidably mountedin a socket 54 formed in the -cheek plate and disposed in a lineradiating from the axis of'rotation of the shaft 12, and these' barsforni guides for directing themovement of the frame 5() toward and fromthe periphery of the main drum.

Journaled in the upper portion of `frames 50 is a transversely disposedlrock shaft 56 having two rocker arms 57 that are connected by links58 topins or bolts 59 carried by the cheek plates, and if this rock shaft isturned in the proper direction, the links will act as supports to permitthe outward -movement of the frames. For this purpose, one end of theshaft carries a worm wheel 60 with which engages. a worm 6l, mounted insuitable bearings 62, and having at one end a handle wheel 63, by whichit may be operated. By turning the worm wheel in one direction, theframes 50 may be moved outward, thus raising all of the pressure rollersfrom engagement with the periphery of the drum, and by movement in theopposite direction the pressure rollers may be restored to operativeposition. 1n the present case the pressure rollers are carried by twoframes 50 and 51, and the frame 51 is provided with pins 58 fitting inradial sockets 54 in the cheek plates. The frames 51 carry a shaft 56,on which are rocker arms 57 and the rocker arms are connected by links58 tothe studs 59 on the cheek plates. The two rock shafts are, also,provided with rocker arms 64 which are connected together by links 65,so that the movement of the rock shaft 56 is transferred to the rockshaft 56, and both frames are simultaneously moved outward from thedrum.

To provide for the slackening of the belts, a'pair of levers 67 isarranged under the handle members 267-36 f stops? ofthe rollers 24'.,34', and these levers are connected by links 68 to the frames whichcarry the pressure rollers, the arrangement being such that as thepressure roller carrying frames move outward, the belt tighteningrollers will be elevated in order to permit the belts to slacken and tomove away from the heated surfaces of the drum and steam jacket.

As a modification of the operating means, lthe frames may beprovidedwith shafts 5.6carrying eccentrics 57*1 that are connected bystraps 80 to bars 58, the

ylower ends of which I4are pivoted on studs 59. The 'shaft in this caseis provided with a worm wheel and is engaged by a worm in a mannersimilar to that already described, sb that by turning the shaft and theeccentrics within the straps 80, the frames may be raised and lowered. 7

In order to direct the clothes from the belt'17 to the belt 18 at thepoint where the belts or aprons separate under the drum 22, aAclefiecting roller 82 is'employed, the roller being rotated in the samedirection as the drum 22 and servingto turn back any article which maycling back to the lower surface of the belt 17, so that all of theclothes will be properly directed on to the belt 18. This roller iscarried by a pair of pivotally mounted arms 84 which may be adjusted inorder to move the roller close to the belt 17 the arms being providedwith slots 85 for the reception of locking bolts 86,

1. rllie combination in a mangle, vof a rmain drum, u pair ofstationaryside frames, a following generally the contour of the drum,guiding pins or bars carried by thearcuate frames and fitting inrecesses formed in the main frame, said pins being arranged radiallywith respect to the drum, a shaft journaled in said arcuate frames, apair of rocker arms secured to said shaft, links extending between therocker arms and fixed studs on the main frame, means forturning saidshaft to effect raising and lowering oflthearcuate frames through therocker arm and link connections, and pressure rollers journaled in saidarcuate frames.

2. The combination with a mangle including a stationary frame and a maindrum, of a series of pressure rollers, a pair of sets of movable framesin which said rollers are journaled, adjustable springs ycarried by themovable framesand bearing against the pressure rollers, a shaft carriedby each set of frames, rocker arms projecting from the shafts, a linkconnecting said rocker arms, ad-

ditional rocker arms extending from both shafts, links connecting theadditional rocker arms to the main frame, and means for turning one ofsaid shafts and thereby simultaneously effecting adjustmentl of bothsets of movable frames toward or from the main frame.

3. The combination in a mangle, of a' main frame having slots, a'drum, aplurality of pressure rollers, movable frames carrying the same, meansfor moving such frames to prevent contact between the pressure rollersand the drum, a. pair of aprons,one of which engages the drum, a steamjacket engaging the other apron, loose rollers forpholding the apronstaut, said rollers having end journuls projecting through the slots,levers arranged under' said journals, and links connecting said leversto the movable frames," whereby on raising the movable frames, therollers will also be elevated and the apron slackened.

1n testimony that I claim the foregoing as my own, `I

have hereto affixed my signature in the p resencevof two witnesses.

ERNST G. SMITH.

Witnesses: Y

JNO. W. GnnnNAwALr, FRANCIS E. MEYER.

